[Solved] Identify the issue in this async error handling code:async function fetchUser() { try { const user = await getUserData(); } catch { console.error('Failed:', err); } } | Node.js

Node.js - Error Handling Patterns

Identify the issue in this async error handling code:

async function fetchUser() {
  try {
    const user = await getUserData();
  } catch {
    console.error('Failed:', err);
  }
}

AThe catch block does not declare the error parameter 'err'

BThe await keyword is missing before getUserData()

CThe function fetchUser() should not be async

Dconsole.error cannot be used inside catch blocks

Step-by-Step Solution

Solution:

Step 1: Review catch syntax
In JavaScript, catch blocks must declare an error parameter to access the error object.
Step 2: Analyze the code
The catch block uses 'err' but does not declare it: catch { ... } instead of catch (err) { ... }.
Step 3: Consequence
This causes a ReferenceError because 'err' is undefined inside catch.
Final Answer:
The catch block does not declare the error parameter 'err' -> Option A
Quick Check:
Is the error parameter declared in catch? [OK]

Quick Trick: Always declare error parameter in catch (e.g., catch (err)) [OK]

Common Mistakes:

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